nanoverse.compiler.pipeline.interpret.visitors.helpers.NanoBlockHelper.java Source code

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Here is the source code for nanoverse.compiler.pipeline.interpret.visitors.helpers.NanoBlockHelper.java

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/*
 * Nanoverse: a declarative agent-based modeling language for natural and
 * social science.
 *
 * Copyright (c) 2015 David Bruce Borenstein and Nanoverse, LLC.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */

package nanoverse.compiler.pipeline.interpret.visitors.helpers;

import nanoverse.compiler.pipeline.interpret.nanosyntax.NanosyntaxParser.StatementContext;
import nanoverse.compiler.pipeline.interpret.nodes.ASTNode;
import nanoverse.compiler.pipeline.interpret.visitors.*;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.tree.ParseTree;
import org.slf4j.*;

import java.util.stream.*;

/**
 * Created by dbborens on 4/30/15.
 */
public class NanoBlockHelper extends AbstractNanoNodeVisitor {

    private final NanoStatementVisitor statementVisitor;
    private final Logger logger;

    public NanoBlockHelper() {
        logger = LoggerFactory.getLogger(NanoBlockHelper.class);
        statementVisitor = new NanoStatementVisitor(this);
    }

    public NanoBlockHelper(NanoStatementVisitor statementVisitor) {
        this.statementVisitor = statementVisitor;
        logger = LoggerFactory.getLogger(NanoBlockHelper.class);
    }

    public Stream<ASTNode> doVisit(ParserRuleContext ctx, int start, int end) {
        logger.debug("Visiting block: {}", ctx.getText());

        return IntStream.range(start, end).mapToObj(ctx::getChild).map(this::verifyAndAccept);
    }

    private ASTNode verifyAndAccept(ParseTree child) {
        verifyPayload(child, StatementContext.class);
        ASTNode ret = child.accept(statementVisitor);
        return ret;
    }
}